API Capacitors

API Capacitors is a privately owned independent British company with decades of experience in the design and manufacture of electrical capacitors. It is now the largest specialist manufacturer of power capacitors in the UK.

Managed by a team of professional engineers, the company’s focus has always been to design and manufacture capacitors which give outstanding performance, long life and reliability with consistent, repeatable quality. Success is based on innovation; by investing in the research and development of cutting-edge technologies while truly understanding current and future industry needs, API Capacitors is able to offer quality products trusted to perform in the most rigorous applications.

API Capacitors offer an extensive product range of filter, snubber and energy storage capacitors servicing the professional markets of traction, industrial drives, power conditioning and avionics, together with discharge capacitors for medical, plasma and pulsed power applications.

Their 22,000 sq foot facility hosts a vast array of industry leading equipment including a High Voltage testing lab with 200kV capability and partial discharge measuring equipment, specialist ovens and freezers for environmental testing, a Class 10,000 clean room with the latest South Korean and Swiss capacitor winding machines, an Automated robotic endspray/schoopage facility ensuring reliable internal electrical connections on their capacitor products, a modern fully equipped workshop with CNC Lathes and milling machines, and light metalwork fabrication equipment.

For routine electrical testing and inspection API have invested in high quality precision automatic component analysers - LCRs, Megohm Meters, and power supplies. Their plant room includes the latest sophisticated vacuum impregnation plant for the oil impregnation of certain product ranges.